Finding the Fourth Proportional to 473,430.60, 708,396.30 and 431,440.20
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Solution
The fourth proportional to 473,430.60, 708,396.30 and 431,440.20 is: 645,565.88
Step by Step Solution
- Step 1: Write the proportion equation
473,430.60 : 708,396.30 = 431,440.20 : x - Step 2: Convert to fraction form
473,430.60/708,396.30 = 431,440.20/x - Step 3: Cross multiply
473,430.60x = 708,396.30 × 431,440.20 - Step 4: Simplify right side
473,430.60x = 305,630,641,351.26 - Step 5: Solve for x
x = 305,630,641,351.26/473,430.60 - Step 6: Final answer
x = 645,565.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.